Diamonds and Dirty Knuckles

She is going to be a Bratva Princess and handle the Brotherhood once she finishes her studies and returns to Russia,
He meanwhile is an underground fighter or a boxer you could say, who is also a student is The Royal University of New York(RUNY).
Both of em' were 'Childhood Sweethearts' but eventually had to part their ways coz' of their families' clashes.
She remained as usual in Russia, but He shifted to New York and started a new life with his family.
Both the families never contacted each other after the clashes and erased the history they had together.
But he eventually meets her in his university when she goes to study there and she sees him while he is a Senior there.